257261233052 has 6 divisors (see below), whose sum is σ = 450207157848. Its totient is φ = 128630616524.

The previous prime is 257261233001. The next prime is 257261233067. The reversal of 257261233052 is 250332162752.

It is a junction number, because it is equal to n+sod(n) for n = 257261232997 and 257261233015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32157654128 + ... + 32157654135.

It is an arithmetic number, because the mean of its divisors is an integer number (75034526308).

Almost surely, 2^257261233052 is an apocalyptic number.

It is an amenable number.

257261233052 is a deficient number, since it is larger than the sum of its proper divisors (192945924796).

257261233052 is a wasteful number, since it uses less digits than its factorization.

257261233052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64315308267 (or 64315308265 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 38.

The spelling of 257261233052 in words is "two hundred fifty-seven billion, two hundred sixty-one million, two hundred thirty-three thousand, fifty-two".